US8102147B2 - Wireless multi-charger system and controlling method thereof - Google Patents

Wireless multi-charger system and controlling method thereof Download PDF

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US8102147B2
US8102147B2 US12/166,483 US16648308A US8102147B2 US 8102147 B2 US8102147 B2 US 8102147B2 US 16648308 A US16648308 A US 16648308A US 8102147 B2 US8102147 B2 US 8102147B2
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Prior art keywords
wireless
power transmission
transmission device
signal
charger
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US12/166,483
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US20090140691A1 (en
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Chun-Kil Jung
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Intel Corp
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Individual
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Priority claimed from KR1020070123752A external-priority patent/KR100971734B1/ko
Priority claimed from KR1020070123751A external-priority patent/KR100998683B1/ko
Priority claimed from KR1020070123749A external-priority patent/KR100971737B1/ko
Application filed by Individual filed Critical Individual
Publication of US20090140691A1 publication Critical patent/US20090140691A1/en
Publication of US8102147B2 publication Critical patent/US8102147B2/en
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Assigned to SPACON CO., LTD. reassignment SPACON CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JUNG, CHUN-KIL
Priority to US13/755,931 priority Critical patent/USRE46391E1/en
Priority to US13/875,748 priority patent/US20130300355A1/en
Priority to US14/457,095 priority patent/USRE46392E1/en
Assigned to HANRIM POSTECH CO., LTD. reassignment HANRIM POSTECH CO., LTD. MERGER (SEE DOCUMENT FOR DETAILS). Assignors: SPACON CO., LTD.
Assigned to INTEL CORPORATION reassignment INTEL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HANRIM POSTECH CO., LTD
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially

Definitions

  • the present invention relates to a, and more particularly to a wireless charger system, and more particularly to a wireless multi-charger system capable of saving the total charging time of a large number of wireless power transmission devices since one wireless multi-power transmission device includes a plurality of the wireless power transmission devices so that a large number of the wireless power transmission devices can be charged with electricity, and preventing the damage of the wireless power transmission devices and the wireless multi-power transmission device although foreign substances are put on charger blocks that are not charged.
  • portable wireless power transmission devices such as mobile phones, PDA, PMP, DMB terminals, MP3 or notebook computers are not supplied with a conventional household power source since users use the portable wireless power transmission devices while moving around. Therefore, it is necessary to install disposable batteries or rechargeable batteries in the portable wireless power transmission devices.
  • this conventional wireless charger is charged by a secondary coil of the battery when a portable terminal block having a battery pack mounted inside is disposed upwardly in a primary coil of wireless charger. That is to say, an induced electromotive force is generated in the secondary coil by the magnetic field formed in the primary coil, and electricity induced from the induced electromotive force is charged in the secondary coil.
  • the wireless charger may be damaged due to the increased loss of power in the primary coil with the changes in the magnetic field when metals are disposed adjacent to the magnetic field generated in the primary coil.
  • the present invention is designed to solve the above problems, and therefore it is an object of the present invention to provide a wireless multi-charger system capable of saving the total charging time of a large number of wireless power transmission devices since one wireless multi-power transmission device includes a plurality of the wireless power transmission devices so that a large number of the wireless power transmission devices can be charged with electricity.
  • one embodiment of the present invention provides a wireless multi-charger system (A) including a wireless multi-power transmission device 10 for transmitting a power signal to a wireless power transmission device 30 in a wireless manner
  • the wireless multi-power transmission device 10 include a wireless charger case 11 formed as an external body, the wireless charger case 11 having a full-bridge resonant converter 22 and a central controller 21 mounted thereinside to transmit a power signal to the wireless power transmission device 30 in a wireless manner
  • the wireless charger case 11 has a wireless charger table 12 formed in an upper surface thereof, wherein the wireless charger table 12 has a plurality of charger blocks 14 , each of which includes a primary charging core 13 , wherein the full-bridge resonant converter 22 is present in a plural form and coupled respectively to a plurality of the charger blocks 14 , wherein a multi-gate driver module 23 is provided to transmit a converted power signal to each of a plurality of the full-bridge resonant converters 22 under the control of the central
  • the wireless charger case 11 may have a power-on/off switch 151 ; an input panel 152 for inputting a signal; and a LCD panel 153 and a charging LED 154 for displaying a charging state of the wireless charger table 12 and a plurality of the charger blocks 14 and the wireless power transmission device 30 , all of which are formed in the front thereof, and may include a power supply unit 25 formed thereinside.
  • the central controller 21 may includes a power supply block 211 coupled to the power supply unit 25 to supply a power source of the wireless multi-power transmission device 10 ; a signal output block 212 for outputting a display signal into the LCD panel 153 and the charging LED 154 ; a gate output signal processor block 213 coupled to the multi-gate driver module 23 to transmit a power signal transmitted from the primary charging core 13 ; a received signal processor block 214 coupled to one side of the primary charging core 13 for processing a signal transmitted from the reception signal processor module 24 for processing a signal transmitted from the wireless power transmission device 30 ; and a main controller 210 for controlling the power supply block 211 , the signal output block 212 , the gate output signal processor block 213 and the received signal processor block 214 .
  • the central controller 21 may control the request for data information on charging capacity to the wireless device 30 , receive data of the information on charging capacity and data of the power signal voltage transmitted from the wireless device 30 to determine voltage data of the transmitted power signal, perform an arithmetic operation on the frequency of the power signal to compensate for a transmitted power relative to the voltage data of the power signal of the determined wireless device 30 , and control the transmission of the power signal as the compensated frequency to transmit a compensated power signal to the wireless device 30 .
  • the wireless power transmission device 30 may include a secondary charging core 32 for transmitting an induced electric current from the magnetic field to correspond to the primary charging core 13 of the wireless multi-power transmission device 10 ; a rectifier block 33 coupled to the secondary charging core 32 to rectify the induced electric current; a smoothing filter block 34 coupled to the rectifier block 33 to filter an electric current; a charger IC block 36 coupled to the smoothing filter block 34 to charge a power source in the battery cell 35 ; a protection circuit module block 37 provided between the charger IC block 36 and the battery cell 35 to detect an electric current charged in the battery cell 35 and transmit information on a charging state of the battery cell 35 to the power receiver controller 39 ; a positive-voltage regulator block 38 provided to supply a power source to the power receiver controller 39 ; and a power receiver controller 39 for controlling the rectifier block 33 , the smoothing filter block 34 , the charger IC block 36 , the protection circuit module block 37 and the positive-voltage regulator block 38 .
  • the power receiver controller 39 may include a power signal processor block 393 coupled to the smoothing Filter block 34 to process a transmission signal for the data information on the power signal received from the wireless power transmission device 10 ; a charge signal processor block 394 coupled to the charger IC block 36 and the protection circuit module block 37 to process a transmission signal for the data information on the charging capacity and charging state of the battery cell 35 ; a signal processor block 392 for processing information on the charging capacity and data information on the native ID that are transmitted to the wireless multi-power transmission device 10 under the control of the device controller 390 ; a device memory unit 391 for storing data information on the native ID, temporally storing the data information of the charging capacity and the charging state transmitted from the protection circuit module block 37 and the charger IC block 36 and storing the data transmitted from the wireless multi-power transmission device 10 ; and a device controller 390 .
  • a power signal processor block 393 coupled to the smoothing Filter block 34 to process a transmission signal for the data information on the power signal received from the wireless power transmission device 10
  • the main controller 210 of the wireless multi-power transmission device 10 may control the transmission of a native code signal for respective charger blocks 14 in addition to the charge power signal to the charger blocks that are on charge, the device controller 390 may analyze the native code signal for the corresponding charger block 14 transmitted from the wireless multi-power transmission device 10 , and the device memory unit 391 stores a data value of the native code signal for the corresponding charger block 14 transmitted from the device controller 390 .
  • the device controller 390 may control the transmission of a data value to the wireless multi-power transmission device 10 , the data value including a voltage value of the power signal received for the received request signal from the wireless multi-power transmission device 10 .
  • another embodiment of the present invention provides a method for controlling a wireless multi-charger system (A) as defined in any one of claims 1 to 4 , including:
  • the object detection step (S 02 ) may include: converting a plurality of the charger blocks 14 into a foreign substance detection mode when a detection signal detected through the corresponding primary charging core 13 and the reception signal processor module 24 according to the load modulation generated by objects is not a normal signal, displays a foreign substance error in the LCD panel 153 or charging LED 154 when the detected foreign substance is a metal or electronic equipment, and stops a charging operation on the corresponding charger block 14 (S 021 ).
  • the charging control step (S 05 ) may include:
  • the wireless multi-charger system according to the present invention may be useful to save the total charging time of a large number of wireless power transmission devices since one wireless multi-power transmission device includes a plurality of the wireless power transmission devices so that a large number of the wireless power transmission devices can be charged with electricity.
  • the wireless multi-charger system according to the present invention may be useful to prevent the damage of the wireless power transmission devices and the wireless multi-power transmission device by stopping the power transmission in the corresponding charger block when foreign substances are put on charger blocks that are not charged.
  • the wireless multi-charger system according to the present invention may be useful to improve the charging efficiency by stably performing a continuous charging operation although the current wireless power transmission device that is on charge is touched to charge a new wireless power transmission device.
  • FIG. 1 is a perspective view showing a wireless multi-power transmission device of a wireless multi-charger system according to the present invention.
  • FIG. 2 is a control block view showing the wireless multi-power transmission device of the wireless multi-charger system according to the present invention.
  • FIG. 3 is block view showing the wireless multi-power transmission device of the wireless multi-charger system according to the present invention.
  • FIG. 4 is a control flowchart showing the wireless multi-power transmission device of the wireless multi-charger system according to the present invention.
  • FIG. 5 is a control flowchart showing the wireless multi-power transmission device of the wireless multi-charger system according to the present invention.
  • FIG. 6 is a control block view showing a method for controlling a wireless multi-charger system according to the present invention.
  • FIGS. 7 to 12 are graphic diagrams illustrating the efficiencies to the power control in the wireless multi-charger system according to the present invention.
  • FIG. 13 is configuration view showing a wireless power transmission device according to one exemplary embodiment of the present invention.
  • FIG. 14 is configuration view showing a central controller of the wireless power transmission device according to one exemplary embodiment of the present invention.
  • FIGS. 15 and 16 are an exploded perspective view and a side cross-sectional view showing the wireless power transmission device according to the present invention, respectively.
  • FIG. 17 is a graphic diagram illustrating the efficiencies of the wireless power transmission device according to the present invention in the repeated charging/discharging experiments.
  • FIG. 18 is a circuit view showing a wireless device control module of the wireless power transmission device according to one exemplary embodiment of the present invention.
  • FIG. 19 is a circuit view showing a rectifier member of the wireless power transmission device according to one exemplary embodiment of the present invention.
  • FIG. 1 is a perspective view showing a wireless multi-power transmission device of a wireless multi-charger system according to the present invention
  • FIG. 2 is a control block view showing the wireless multi-power transmission device of the wireless multi-charger system according to the present invention
  • FIG. 3 is block view showing the wireless multi-power transmission device of the wireless multi-charger system according to the present invention
  • FIG. 4 is a control flowchart showing the wireless multi-power transmission device of the wireless multi-charger system according to the present invention
  • FIG. 5 is a control flowchart showing the wireless multi-power transmission device of the wireless multi-charger system according to the present invention
  • FIG. 6 is a control block view showing a method for controlling a wireless multi-charger system according to the present invention.
  • FIGS. 7 to 12 are graphic diagrams illustrating the efficiencies to the power control in the wireless multi-charger system according to the present invention.
  • FIGS. 7 to 12 shows the power control when a wireless power transmission device 30 moves relative to the wireless multi-power transmission device 10 .
  • FIG. 13 is configuration view showing a wireless power transmission device according to one exemplary embodiment of the present invention
  • FIG. 14 is configuration view showing a central controller of the wireless power transmission device according to one exemplary embodiment of the present invention.
  • FIGS. 15 and 16 are an exploded perspective view and a side cross-sectional view showing the wireless power transmission device according to the present invention, respectively
  • FIG. 17 is a graphic diagram illustrating the efficiencies of the wireless power transmission device according to the present invention in the repeated charging/discharging experiments
  • FIG. 18 is a circuit view showing a wireless device control module of the wireless power transmission device according to one exemplary embodiment of the present invention
  • FIG. 19 is a circuit view showing a rectifier member of the wireless power transmission device according to one exemplary embodiment of the present invention.
  • the wireless multi-charger system (A) includes a wireless multi-power transmission device 10 for transmitting a power signal to a wireless power transmission device 30 in a wireless manner, as shown in FIGS. 1 to 19 .
  • the wireless multi-power transmission device 10 has a wireless charger case 11 formed as an external body.
  • a full-bridge resonant converter 22 and a central controller 21 for transmitting a power signal to the wireless power transmission device 30 in a wireless manner are mounted inside the wireless charger case 11 .
  • a wireless charger table 12 is provided in an upper surface of the wireless charger case 11 .
  • a plurality of charger blocks 14 each having a primary charging core 13 are formed in the wireless charger table 12 .
  • the full-bridge resonant converter 22 is provided in a plural form and coupled respectively to a plurality of the charger blocks 14 .
  • a multi-gate driver module 23 is provided to transmit a converted power signal to each of a plurality of the full-bridge resonant converters 22 under the control of the central controller 21 .
  • a reception signal processor module 24 coupled to a plurality of the charger blocks 14 to process a signal transmitted from the wireless power transmission device 30 and supply the processed signal to the central controller 21 .
  • the wireless charger case 11 has a power-on/off switch 151 ; an input panel 152 for inputting a signal; and a LCD panel 153 and a charging LED 154 for displaying a charging state of the wireless charger table 12 and a plurality of the charger blocks 14 and the wireless power transmission device 30 , all of which are formed in the front thereof, and includes a power supply unit 25 formed thereinside.
  • the portable wireless power transmission device 30 such as mobile phones, PDA, PMP, DMB terminals, MP3 or notebook computers is put on a plurality of charger blocks 14 formed on the wireless charger case 11 , as shown in FIG. 1 . Therefore, the power transmission device 10 detects the wireless power transmission device 30 and performs a charging operation when the portable wireless power transmission device 30 is put on a plurality of charger blocks 14 .
  • the central controller 21 includes a power supply block 211 coupled to the power supply unit 25 to supply a power source of the wireless multi-power transmission device 10 ; a signal output block 212 for outputting a display signal into the LCD panel 153 and the charging LED 154 ; a gate output signal processor block 213 coupled to the multi-gate driver module 23 to transmit a power signal transmitted from the primary charging core 13 ; a received signal processor block 214 coupled to one side of the primary charging core 13 for processing a signal transmitted from the reception signal processor module 24 for processing a signal transmitted from the wireless power transmission device 30 ; and a main controller 210 for controlling the power supply block 211 , the signal output block 212 , the gate output signal processor block 213 and the received signal processor block 214 , as shown in FIG. 2 .
  • the wireless power transmission device 30 includes a secondary charging core 32 for transmitting an induced electric current to correspond to the primary charging core 13 of the wireless multi-power transmission device 10 ; a rectifier block 33 coupled to the secondary charging core 32 to rectify the induced electric current; a smoothing filter block 34 coupled to the rectifier block 33 to filter an electric current; a charger IC block 36 coupled to the smoothing filter block 34 to charge a power source in the battery cell 35 ; a protection circuit module block 37 (PCM) provided between the charger IC block 36 and the battery cell 35 to detect an electric current charged in the battery cell 35 and transmit information on a charging state of the battery cell 35 to the power receiver controller 39 , and detecting overvoltage, under voltage, electric current and shortcut of a battery; a positive-voltage regulator block 38 provided to supply a power source to the power receiver
  • the power receiver controller 39 includes a power signal processor block 393 coupled to the smoothing filter block 34 to process a transmission signal for the data information on the power signal received from the wireless power transmission device 10 ; a charge signal processor block 394 coupled to the charger IC block 36 and the protection circuit block 37 to process a transmission signal for the data information on the charging capacity and charging state of the battery cell 35 ; a signal processor block 392 for processing information on the charging capacity and data information on the native ID that are transmitted to the wireless multi-power transmission device 10 under the control of the device controller 390 ; a device memory unit 391 for storing data information on the native ID, temporally storing the data information of the charging capacity and the charging state transmitted from the protection circuit block 37 and the charger IC block 36 and storing the data transmitted from the wireless multi-power transmission device 10 ; and a device controller 390 .
  • the wireless multi-charger system (A) according to the present invention, as configured thus, has an advantage that several wireless power transmission devices 30 may be charged only one time since the wireless charger table 12 formed on the wireless multi-power transmission device 10 is formed of a plurality of the charger blocks 14 .
  • the charging operation of the wireless multi-charger system (A) according to the present invention is described in more detail, as follows.
  • a standby mode step (S 01 ) in which a power signal is transmitted in every cycle via gate signal paths 234 of the gate output signal processor block 213 —the multi-gate driver module 23 —the full-bridge resonant converter 22 —the corresponding primary charging cores 13 of respective charger blocks 14 is performed under the control of the central controller 21 in the wireless multi-power transmission device 10 of the wireless multi-charger system (A).
  • a power signal is transmitted via the primary charging core 13 in every cycle, the power signal including a call signal for calling a native ID value of the wireless power transmission device 30 , and waiting for the receipt of a response signal for the power signal.
  • an object detection step (S 02 ) of receiving a detection signal according to the load modulation is performed in the primary charging core 13 of one of the charger blocks 14 .
  • the portable wireless power transmission devices 30 such as mobile phones, PDA, PMP, DMB terminals, MP3 or notebook computers, that may be charged in a wireless manner; and conventional electronic equipments that may not be charged in a wireless manner may be put on the charger blocks 14 .
  • the wireless multi-power transmission device 10 receives a signal according to the load modulation as a detection signal, the load modulation being generated by any of the objects as listed above, and simultaneously determines the presence of the object by determining whether the objects are put on the top of the charger block 14 .
  • the wireless multi-power transmission device 10 may be converted into the standby mode step (S 01 ).
  • the heat generation and erroneous operations of equipment may occur due to the charging operation in the case of the electronic equipment that may not be charged in a wireless manner, not in the case of the wireless power transmission device 30 that may be charged in a wireless manner.
  • the object detection step (S 02 ) includes: detecting these foreign substances (parasitic metal detection (PMD)) (S 021 ). That is to say, the foreign substance detection step (S 021 ) includes: determining whether a detection signal is not a normal signal, the detection signal being detected through the corresponding primary charging core 13 and the reception signal processor module 24 according to the load modulation generated by objects in a plurality of the charger blocks 14 . The signal transmitted under the control of the central controller 21 is determined whether it is an abnormal signal whose signal determination is impossible by comparing the reception signal according to the load modulation.
  • PMD parsitic metal detection
  • the corresponding charger block 14 is converted into a foreign substance detection mode when the corresponding charger block 14 detects a foreign substance, and displays a foreign substance error in the LCD panel 153 or the charging LED 154 when the detected foreign substances is a metal or electronic equipment, and operates to stop a charging operation of the corresponding charger block 14 (parasitic metal detection (PMD) error).
  • PMD parsitic metal detection
  • a signal for searching the wireless power transmission device 30 is transmitted together with a request signal for requesting a data value of the native ID of the wireless power transmission device 30 . Therefore, an induced electric current generated by the secondary charging core 32 is rectified through the rectifier block 33 in the wireless power transmission device 30 , and then filtered through the smoothing Filter block 34 .
  • the receive reception signal according to the load modulation is processed in the reception signal processor module 24 coupled to the primary charging core 13 of the wireless multi-power transmission device 10 , and then transmitted to the main controller 210 of the central controller 21 via the received signal processor block 214 .
  • the main controller 210 determines whether the received data is a normal native ID data of the wireless power transmission device 30 , and then determines whether the wireless power transmission device 30 is a normal device that can be charged in a wireless manner by determining whether the received data is a native ID data transmitted from the normal wireless power transmission device 30 .
  • a fully charged power transmission step (S 04 ) of transmitting a fully charged transmission power from the primary charging core 13 of the corresponding charger block 14 is performed in the multi-gate driver module 23 .
  • the main controller 210 of the central controller 21 determines that the normal wireless power transmission device 30 is put on the charger block 14 of the main controller 210 , the main controller 210 transmits a control signal with the transmission of the power signal via the gate output signal processor block 213 and the gate signal path 234 .
  • control signal is transmitted to the multi-gate driver module 23 , and then transmitted with the transmission of the power signal, a power signal is transmitted to the primary charging core 13 of the corresponding charger block 14 via the corresponding full-bridge resonant converter 22 , and then the power signal is transmitted to the wireless power transmission device 30 due to the generation of an induced magnetic field.
  • the gate signal path 234 may be composed of a plurality of signal paths corresponding respectively to the respective charger blocks 14 . Therefore, a control signal of the main controller 210 is transmitted to the multi-gate driver module 23 via the respective corresponding signal paths of the gate signal paths 234 .
  • the multi-gate driver module 23 may include a gate signal converter unit 232 for processing a gate signal; an output driver 233 for transmitting the processed signal to the corresponding full-bridge resonant converter 22 ; and a gate controller 231 .
  • the gate signal path 234 is composed of a plurality of signal paths corresponding to the respective charger blocks 14 .
  • the main controller 210 is configured to transmit respective control signals to the charger block 14 respectively via the gate output signal processor block 213 including a plurality of output signal processor members, and therefore the gate signal converter unit 232 of the multi-gate driver module 23 may be composed of a plurality of converter members corresponding respectively to the charger blocks 14 .
  • the gate controller 231 is configured to control the signal transmission/reception and signal processing in the multi-gate driver module 23 .
  • the control signal transmitted from the main controller 210 may be transmitted to members corresponding respectively to the charger blocks 14 , and therefore a power signal is transmitted to stably transmit an induced magnetic field.
  • this configuration is suitable to a small wireless multi-power transmission device 10 .
  • the gate signal path 234 may be configured as a single path, and the gate signal converter unit 232 of the multi-gate driver module 23 may also be configured as a single converter member (or a plurality of converter member).
  • the main controller 210 transmits a control signal to the multi-gate driver module 23 .
  • the control signal is transmitted together with a code signal for the corresponding charger block 14 prior to transmission of a conversion signal
  • the gate controller 231 of the multi-gate driver module 23 receiving the control signal determines a signal for which charger block 14 the control signal transmitted from the main controller 210 is, and the converted power signal may be transmitted to the full-bridge resonant converter 22 as a code signal for the corresponding charger block 14 .
  • a charging control step (S 05 ) is performed by requesting information on a charging state to the wireless power transmission device 30 and controlling a charging level according to the received charging information of the wireless power transmission device 30 .
  • the wireless power transmission device 30 controls the charger IC block 36 and the protection circuit module block 37 to charge a power source into the battery cell 35 , the power source being transmitted via the rectifier block 33 and the smoothing filter block 34 under the control of the device controller 390 after the fully charged power transmission step (S 04 ).
  • the device controller 390 receives information on a charging state of the battery cell 35 through the charger IC block 36 and the protection circuit module block 37 , and temporally stores the information on a charging state in the device memory unit 391 . Then, when the battery cell 35 is in a fully charged state, the charging operation is stopped by controlling the charger IC block 36 . Also, information on the fully charged state is generated in the secondary charging core 32 through the signal processor block 392 . Also, when a voltage of the charged battery cell 35 is less than a predetermined reference voltage, the battery cell 35 is converted again into a charging state to perform another charging operation. However, the battery cell 35 is proven to be in a fully charged state, the charging of the battery cell 35 is stopped (No Operation).
  • the main controller 210 of the wireless multi-power transmission device 10 requests information on the charging levels in every step of the wireless power transmission device 30 in the charging control step (S 05 ).
  • the device controller 390 of the wireless power transmission device 30 transmits data of the information on the charging state of the battery cell 35 using a load modulation method.
  • the reception signal processor module 24 includes a plurality of reception signal input units 243 for receiving signals detected in the respective charger blocks 14 through the load modulation; a reception signal processor unit 242 for converting a detection signal according to the load modulation of each of the charger blocks 14 ; and a reception signal controller 241 for controlling an operation of the reception signal processor module 24 .
  • the transmission information of the wireless power transmission device 30 received through the load modulation is converted into signals in the reception signal processor module 24 , depending on the respective charger blocks 14 , and the converted signals are transmitted to the main controller 210 through the received signal processor blocks 214 .
  • the reception signal processor module 24 may generally have a plurality of amplifiers, LPF, OR logic circuits and the like, all of which are mounted thereinside.
  • the reception signal processor unit 242 and the reception signal path 244 of the reception signal processor module 24 may be configured as a single member or as a plurality of members so as to generate a native code each of the corresponding charger blocks 14 , as described above in the exemplary embodiment of the multi-gate driver module 23 .
  • a plurality of the reception signal processor units 242 process their own signals, and transmit the processes signals to the main controller 210 via the respective reception signal paths 244 . Therefore, signals generated in the corresponding charger blocks 14 are accurately transmitted to the main controller 210 through the separate signal processing and via the paths, and processed in the main controller 210 , and therefore it is possible to operate a system stably. Also, this system may suitably apply to small devices as in the above-mentioned multi-gate driver module 23 .
  • the reception signal processor unit 242 of the multi-gate driver module 23 determines a reception signal for which charger block 14 the received signal according to the load modulation is under the control of the reception signal controller 241 , and the processed reception signal is divided into categories together with the code signal for the corresponding charger blocks 14 when the processed reception signal is transmitted via the received signal processor block 214 . Then, the main controller 210 receives the reception signals for the respective charger blocks 14 , divides respective signals into categories and processes the signals by category. Therefore, the configuration of single members may be used as the simplified configuration of the entire members.
  • the wireless multi-power transmission device 10 requests data information on a charging level to the wireless power transmission device 30 that is charged in the corresponding charger block 14 through the multi-gate driver module 23 and the primary charging core 13 , depending on the corresponding charger block 14 .
  • the corresponding wireless power transmission device 30 transmits the data information on a charging level of the battery cell 35 that is received via the charger IC block 36 and the protection circuit module block 37 .
  • the information is transmitted to the main controller 210 via the primary charging core 13 of the respective charger block 14 and the reception signal processor module 24 .
  • the main controller 210 of the central controller 21 displays information on a charging level or state in the form of letters or figures on the LCD panel 153 through the signal output block 212 , depending on the data of the charging level in the corresponding wireless power transmission device 30 , and controls the charging LED 154 to display that the corresponding charger block 14 is on charge. Then, the LCD panel 153 displays a charging state along with the number of the corresponding charger block 14 . Also, the LCD panel 153 displays that each of the respective charger blocks 14 turns on the charging LED 154 .
  • the charging operation of the battery cell 35 is stopped when a lamp of the charging LED 154 is turned off, the battery cell 35 is on charge when the lamp is flickered, a green light is turned on the battery cell 35 is fully charged, and a red light is turned on when errors such as a foreign substance error, a native ID error are caused.
  • the charging operation of the battery cell 35 may be performed in various manners.
  • a charging efficiency in the wireless power transmission device 30 may be maximized by converting a power signal transmitted from the corresponding charger block 14 of the wireless multi-power transmission device 10 .
  • the charger blocks 14 is preferably in a standby mode.
  • the error is displayed in the corresponding charger block 14 , and the charging operation of the corresponding charger block 14 is then stopped to ensure the stability of the wireless multi-power transmission device 10 , the wireless power transmission device 30 or other metal materials, and the electronic equipment. Therefore, when the charging operation of the corresponding charger block 14 is stopped due to the generation of the errors, the charger block 14 is in a standby mode until a re-start signal is inputted into the charger block 14 by a user.
  • a pulse signal is periodically transmitted to the charger blocks 14 when there is the error or the fully charged state.
  • the charger blocks 14 are normally converted into a standby mode when the charger blocks 14 senses that the error is solved, for example, by removing the fully charged wireless power transmission device 30 or foreign substances using the signal according to the load modulation.
  • the main controller 210 of the wireless multi-power transmission device 10 may be configured to control the charger block that is on charge to transmit a native code signals for the respective charger blocks 14 together with the charge power signal. Therefore, the device controller 390 may be configured to analyze the native code signals for the corresponding charger blocks 14 that are transmitted from the wireless multi-power transmission device 10 , and the device memory unit 391 may be configured to store a data value of the native code signals for the corresponding charger blocks 14 that are transmitted from the device controller 390 .
  • the device controller 390 is configured to control the data value for the voltage value of the power signal to be transmitted to the wireless multi-power transmission device 10 , the voltage value of the power signal being received for the request signal received from the wireless multi-power transmission device 10 .
  • a power source for USB ports of computers and a power source inputted from an AC adapter, a cigar Jack and the like may be supplied to the power supply unit 25 .
  • a temperature detector unit 26 is provided to detect temperature of the corresponding charger block 14 or the wireless multi-power transmission device 10 during the charging procedure. Therefore, an operation of the corresponding charger block 14 may be stopped when the corresponding charger block 14 is heated to the hot temperature detected in the temperature detector unit 26 , and an operation of the entire system may be stopped when the entire wireless multi-power transmission device 10 is heated to the hot temperature.
  • a current detection member may be provided in each of the power supply unit 25 , the multi-gate driver module 23 , the respective full-bridge resonant converters 22 or the reception signal processor modules 24 to monitor a flow of electric current.
  • a current detection member may be provided in each of the power supply unit 25 , the multi-gate driver module 23 , the respective full-bridge resonant converters 22 or the reception signal processor modules 24 to monitor a flow of electric current.
  • the corresponding members becomes an over current and overvoltage state by means of the current detection member, operations of the corresponding member and its related charger block 14 are stopped, or an operation of the system is stopped, and they transmit a signal for the error.
  • FIG. 13 is a configuration view showing a wireless multi-power transmission device according to one exemplary embodiment of the present invention.
  • the wireless power transmitter includes a control logic for IC communication with a receptor module installed inside the wireless power transmission device that is a wireless device; and a pre-driver for driving a full-bridge resonance-type converter to generate an induced electromotive force using LC resonance.
  • an SPI controller for communication with EEPROM for storing various parameters may be installed inside the wireless power transmitter.
  • a clock input port for operation of the system an LCD backlight for displaying a charging state of the wireless device, and an input/output port for controlling ports of the LCD may be installed inside the wireless power transmitter.
  • the wireless power transmitter may include an LED input/output port for checking the operation of the wireless device, VCC and GND input ports for DC power source, and a shout-down port for detecting temperature of a transmission coil and stopping the operation of the wireless device when an inside comparator determines the temperature of the transmission coil to be more than a predetermined temperature.
  • FIG. 14 is a configuration view showing a central controller of the wireless multi-power transmission device according to one exemplary embodiment of the present invention.
  • the central controller may be configured with a single mold.
  • This single chip may have a function to enable wireless power transmission, and the FET Pre-driver has an output function, and the analog unit has a comparator installed thereinside, the comparator having an ID detection function, and may include a power-on reset, 5V, VCC-5V, a 3.3V positive-voltage regulator (including a shutdown function in shortcut), and an input port for detecting temperature of the transmission/reception coil temperature.
  • the digital unit may include an SPI interface for serial communication, a logic for controlling wireless power transmission, and an amplifier for an external system clock oscillator amplifier. Also, a plurality of input/output ports may be installed inside the central controller to drive LED, backlight, LCD, etc.
  • FIG. 18 is a circuit view showing a wireless device control module of the wireless power transmission device according to one exemplary embodiment of the present invention.
  • members for controlling the wireless power transmission device 30 may be configured with a single mold. That is to say, the wireless device control module has a function to communicate with the wireless multi-power transmission device 10 in a wireless manner, and may include members such as a pre-driver and FET for ID generation, a comparator for analog input, a power-on reset as an analog unit, a clock oscillating circuit, 64-bit interior/exterior ID and a control logic.
  • the wireless device control module may have a function to be converted into a recharge mode, a function to feed back a value of the fully charged state of the charger IC, a function to detect a phase to recognize an encryption code, etc.
  • the wireless device control module may be designed to have an output port for controlling an external DC/DC converter or a charger IC, an analog input and a comparator for controlling up and down of power, input/output ports for setting various modes.
  • FIG. 19 is a circuit view showing a wireless power transmission device according to one exemplary embodiment of the present invention.
  • a member for processing a power signal transmitted from the wireless multi-power transmission device 10 may be formed with a singly mold.
  • the mold may include a synchronous rectifier for generating a DC voltage from a reception coil to minimize the power loss and the heat generation, and a buck-converter used to previously control the output of the rectifier so as to supply a predetermined voltage to a charging circuit.
  • This buck-converter may be switched on at a rate of high-speed 2 MHz so as to reduce output ripples of the rectifier and employ a micro chip inductor.
  • the output of the buck-converter may be used as an input of a linear charging circuit, and a built-in linearly charging function allows a battery to be charged with CC/CV.
  • the battery is designed to set a charge electric current to a predetermined current level.
  • This linearly charging function has a fully charged state port that may feed back a charging state of the battery, and the linearly charging function may also have a low dropout (LDO) regulator installed thereinside, the LDO regulator having an output voltage of 2.85V to supply a power source to a power receiver chip (a wireless device control module) that is IC for controlling external systems.
  • LDO low dropout
  • this synchronous rectifier chip has low heat generation and drop characteristics (i.e., 0.4V drop in a rectifier), and has a 2 MHz buck-converter installed thereinside for the purpose of the high efficiency.
  • the synchronous rectifier chip may be maintained to the maximum input voltage of about 20V, installed inside the battery pack in the form of a Micor SMD package, and optimized for the wireless power transmission within several hundreds of kHz bandwidth.
  • PFET P-channel field effect transistor
  • a LDO regulator with 2.85V@10 mA may be installed inside the PFET.
  • a power signal transmitted by the primary charging core 13 of the wireless multi-power transmission device 10 is transmitted via the secondary charging core 32 of the wireless power transmission device 30 .
  • the device controller 390 receives information on the input voltage intensity of the power signal. Then, the device controller 390 desirably maintains the voltage of the power signal to a constant voltage level when the device controller 390 detects that a voltage (for example, about 5V) of the power signal received in the device controller 390 is transmitted as a stable voltage.
  • the wireless power transmission device 30 may be configured to receive a constant voltage by transmitting information on voltage regulation to the wireless multi-power transmission device 10 in a load modulation manner.
  • the device controller 390 controls the battery cell 35 to be charged with power by converting an operation of the charger IC in the charger IC block 36 of the wireless power transmission device 30 into an active state.
  • the protection circuit module block 37 is configured to stably charge the battery cell 35 with electric power by checking the stability of the battery cell 35 while the battery cell 35 is on charge.
  • the wireless multi-charger system (A) transmits a request signal for voltage compensation to the wireless multi-power transmission device 10 so as to supplement the shortage in the voltage of the power signal and transmit the supplemented voltage of the power signal.
  • a voltage of the received power signal is set to the reference voltage of 5V, and a reference deviation value is set to a voltage of 0.5V.
  • the device controller 390 of the wireless power transmission device controller module 39 controls the secondary charging core 32 to boost a voltage by about 0.5V and transmit the boosted voltage. Then, the secondary charging core 32 transmits a boost request signal via the signal processor block 392 .
  • the wireless multi-power transmission device 10 transmits the boosted power signal in response to the 0.5V boost request signal. That is to say, an oscillation frequency may be varied, for example, to boost a transmission power outputted from the wireless multi-power transmission device 10 .
  • the power signal transmitted from the wireless multi-power transmission device 10 is regulated according to the changes in the position of the wireless power transmission device 30 . Theses charging efficiencies according to the changes in the position are shown in FIGS. 7 to 12 .
  • FIGS. 7 to 10 are graphic diagrams showing a primary power (W) in the wireless multi-power transmission device and a secondary power (W) in the wireless power transmission device, and their efficiencies (%), all of which are measured by moving the wireless power transmission device 30 on the corresponding charger block 14 of the wireless multi-power transmission device by ⁇ 7 mm ⁇ 7 mm in a horizontal direction and a vertical direction, respectively, when it is assumed that a secondary reference power of the wireless power transmission device is set to a voltage level of about 2.5 W.
  • the efficiency (%) is represented by an efficiency of an output power of the wireless multi-power transmission device to a primary input power of the wireless multi-power transmission device ((secondary power/primary power)*100), the output power being applied to a secondary side of the wireless multi-power transmission device.
  • FIGS. 7 and 8 show graphs that is plotted in a secondary power of 2 ⁇ 2.5 W in the case of the wireless power transmission device, which indicates the charging efficiency when the wireless power transmission device 30 is charged without the compensation of the power signal according to the changes in frequency in the wireless charger apparatus 10 relative to the changes in horizontal distances and vertical distances of the wireless multi-power transmission device 10 and the wireless power transmission device 30 .
  • FIG. 9 a graph according to the movement of the wireless power transmission device 30 in a horizontal direction
  • FIG. 10 a graph according to the movement of the wireless power transmission device 30 in a vertical direction
  • information on the changes in the received power voltage is transmitted from the wireless power transmission device as the wireless power transmission device 30 moves in a horizontal direction and a vertical direction on the top of the charger block 14 of the wireless multi-power transmission device 10 .
  • the wireless multi-power transmission device 10 shows its efficiency by controlling a power through the changes in frequency. This indicates that the power transmission is stably performed in the wireless power transmission device 30 , and therefore it is revealed that the efficiency in the power transmission is good.
  • FIG. 11 shows a graph plotting efficiencies according to the movement of the wireless power transmission device 30 in a horizontal direction
  • FIG. 12 shows a graph plotting efficiencies according to the movement of the wireless power transmission device 30 in a vertical direction.
  • the efficiencies are better when there is the power compensation according to the change in frequency (an upper rectangular dot graph, POWER CONTROL) than when there is no power compensation according to the change in frequency (a lower curve graph, FIXED POWER).
  • a power source is stably transmitted in a wireless manner through the wireless power transmission of the wireless multi-charger system (A) that is carried out in the wireless multi-power transmission device 10 and the wireless power transmission device 30 . Therefore, the wireless multi-power transmission device 10 and the wireless power transmission device 30 may be stably used in the wireless multi-charger system (A).
  • the charging method for the power compensation in the charging control step (S 05 ) of performing the above-mentioned wireless power transmission may be used as a better charging method in the case of the configuration in which a plurality of the charger blocks 14 are provided in the wireless multi-power transmission device 10 according to the present invention.
  • various kinds of the wireless power transmission devices 30 may be positioned and charged on the wireless charger table 12 in the case of the configuration in which a plurality of the charger blocks 14 is configured on the wireless charger table 12 as shown in FIG. 1 .
  • portable wireless power transmission devices such as mobile phones, PDA, PMP, DMB terminals, MP3 or notebook computers may be used as the wireless power transmission device 30 . While one wireless power transmission device is charged on the charger block 14 positioned in one side of the wireless charger table 12 , another wireless power transmission device may be put and charged on the charger block 14 positioned in another side of the wireless charger table 12 .
  • a primary charging core of the corresponding charger block 14 and a secondary charging core of the wireless power transmission device that is on charge may be unfortunately changed in position. Since the wireless power transmission device that is being on charge is charged with a stable voltage due to the compensation of the charging power as described above, a corresponding device may continue to be charged without any big troubles until the device is in a fully charged state.
  • a wireless power transmission device is charged on each of the respective charger blocks 14 .
  • small mobile phones may not only be charged on the respective charger blocks 14 , but large wireless power transmission devices that may be charged in a wireless manner may also be charged on the respective charger blocks 14 .
  • a secondary charging core of the corresponding wireless power transmission device may be charged in a position corresponding to a primary charging core of one charger block, but other parts of the wireless power transmission device that are free from the secondary charging core are put on other charger blocks due to the big size of the wireless power transmission device.
  • the other charger blocks are converted into a foreign substance error mode to stop the power transmission, which may prevent the damage of other part of the wireless power transmission device.
  • the wireless power transmission device and the wireless multi-power transmission device may stably perform their charging operation according to the power transmission since only the charger block on which the secondary charging core of the large wireless power transmission device is positioned performs its wireless charging operation.
  • the wireless power transmission device 30 includes a shielding member for protecting the wireless power transmission device 30 and the battery cell 35 from the magnetic field that is generated by the primary charging core 13 of the wireless multi-power transmission device 10 and the secondary charging core 32 of the wireless power transmission device 30 , as shown in FIGS. 15 to 19 .
  • FIG. 13 is an exploded perspective view showing a configuration of a wireless power transmission device 30 having a wireless power receiver module.
  • a battery pack composed of coil, fine metal, thin aluminum film (foil, etc.), lithium ion or lithium polymer has no effect on cells since a thin aluminum film is introduced into the battery pack to completely cut off the magnetic field, which allow the cells to be charged/discharged at cell cycles of 500 or more.
  • the shapes of the secondary charging core include all kinds of cores. That is to say, the shapes of the core may include a rectangular shape, a round shape or an oval shape, and various cores such as a winding coil, a spiral core and the like may be provided herein.
  • the wireless power transmission device 30 having a wireless power receiver module includes a wireless power receiver circuit 40 including members such as a power receiver controller 39 and a charger IC block 36 , both of which are formed in one side of the charging battery cell 35 , and the wireless power receiver circuit 40 may include a shielding member 41 for preventing a surrounding magnetic field.
  • the wireless power transmission device 30 is provided with shielding plates 42 , 43 , 44 , 45 and 46 provided in the bottom, the front, the rear, the left side and the right side of the charging battery cell 35 to protect the battery cell 35 from the magnetic field of the primary core block and the secondary core block 32 by shielding the magnetic field.
  • an additional shielding plate may be provided in an upper surface of the battery cell 35 , when necessary. In this case, it is desirable when temperature is not increased due to the completely closed surroundings of the battery cell 35 .
  • the shielding plates 42 , 43 , 44 , 45 and 46 and the shielding member 41 may be formed of thin discs including Al, Cu, Ni Alloy metals.
  • a magnetic plate 48 is formed between the shielding plates 46 and the charge receiver module 321 to facilitate the induction of the magnetic field induced from the secondary charging core 32 , the shielding plates 46 formed in the bottom of the battery cell 35 , and the charge receiver module 321 including the secondary charging core 32 .
  • This magnetic plate 48 includes amorphous ferrites, Mn—Zn (50 parts by weight:50 parts by weight), Ni—Fe (80 parts by weight:20 parts by weight), fine metals (Fe—Si—Cu—Nb), etc.
  • the magnetic plate 48 may be composed of an upper magnetic plate 481 formed between the shielding plates 46 and the charge receiver module 321 ; and a lower magnetic plate 252 disposed in a lower portion of the charge receiver module 321 . Therefore, the lower magnetic plate 482 may have a lower plate thorough hole as a thorough hole passed through the center thereof.
  • This shape of the lower plate thorough hole 483 is preferably formed with the same shape as the core of the secondary core block 32 .
  • FIG. 15 shows that the lower plate thorough hole 483 of the lower magnetic plate 482 is formed with a round shape since the secondary core block 32 is formed of a round core.
  • the lower plate thorough hole 483 is preferably formed with the same shape.
  • an induced electromotive force is easily generated in the secondary core block 32 due to the presence of the lower plate thorough hole 483 , the secondary core block 32 being that is present within the induced magnetic field, and the signal may be transmitted/received in an easy manner.
  • the magnetic plate 48 is provided with an insulating plate 47 that is provided between the shielding plates 46 and the battery cell 35 to insulate the battery cell 35 , the shielding plates 46 being formed in the bottom of the battery cell 35 . Since this insulating plate 47 is formed in the form of a mesh or thin film that is made of Ni—Cu, the heat of the shielding plates 46 is not delivered to the battery cell 35 .
  • the magnetic plate 48 is provided with a magnetic plate 48 (a primary HPES:Hanrim Postech Electro-magnetic shield) formed between an aluminum-based battery cell case 35 ′ and the secondary core block 32 as shown in FIG. 16 , the aluminum-based battery cell case 35 ′ constituting an outer body of the battery cell 35 .
  • a shield mesh member 49 is further provided as a secondary HPES between the magnetic plate 48 (i.e., a primary HPES) and the battery cell case 35 ′.
  • the magnetic plate 48 as a primary HPES and the shield mesh member 49 as a secondary HPES may be composed of the same components as in the above-mentioned shielding member.
  • the shield mesh member 49 as a secondary HPES is formed by coating a metal mesh with a coating agent selected from the group consisting of amorphous ferrites, Mn—Zn (50 parts by weight:50 parts by weight), Ni—Fe (80 parts by weight:20 parts by weight), or fine metals (Fe—Si—Cu—Nb). Therefore, the secondary HPES functions to shield the magnetic field that is not shielded by the magnetic plate 48 that is a primary HPES. An eddy current is formed by excessive line of magnetic force in the metal mesh of the shield mesh member 49 that is a secondary HPES.
  • the battery pack should be affected by the magnetic field that is generated by the primary core block and the secondary core block due to the presence of the eddy current formed in the metal mesh.
  • the magnetic plate 48 that is a primary HPES
  • the shield mesh member 49 that is a secondary HPES.
  • the wireless power transmission device 30 including the magnetic plate 48 as a primary HPES and the shield mesh member 49 as a secondary HPES is used to repeat a charging experiment (500 cycles) for the charging efficiency.
  • a battery is not coupled to a charging device in wireless manner, but the battery is coupled to the charging device through wires to perform a charging/discharging experiment, as shown in FIG. 17 .
  • FIG. 17 shows a graph that is plotted using an 80% efficiency curve as the reference curve (hereinafter, referred to as “standard efficiency line segment” (D)), the 80% efficiency curve being obtained through the repeated charging/discharging of a battery pack at 500 cycles and referred to as a stable charging efficiency.
  • D standard efficiency line segment
  • the experiment of the wireless power transmission device 30 is carried out so that the charging capacities can be plotted over the standard efficiency line segment, which indicates that the charging/discharging efficiency is stable in the battery pack.
  • the charging/discharging efficiency by the magnetic plate 48 as a primary HPES and the shield mesh member 49 as a secondary HPES is stable with an efficiency of 83.9% on the basis of 500-cycle charging/discharging experiment.
  • the charging/discharging efficiency (a graph represented by “B” in FIG. 17 ) is rather low with an efficiency of 75.3% on the basis of 460-cycle charging/discharging experiment.
  • the charging/discharging efficiency (a graph represented by “C” in FIG. 17 ) is very low with an efficiency of 74.5% in the charging/discharging experiment at 340 cycles that are far away below the 500 cycles.
  • the wireless power transmission device 30 according to the present invention shows a highly excellent charging/discharging efficiency.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
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Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090271047A1 (en) * 2008-04-28 2009-10-29 Masataka Wakamatsu Power transmitting apparatus, power receiving apparatus, power transmission method, program, and power transmission system
US20100201314A1 (en) * 2009-02-12 2010-08-12 Qualcomm Incorporated Wireless power transfer for low power devices
US20100277336A1 (en) * 2009-04-30 2010-11-04 Shenzhen Futaihong Precision Industry Co., Ltd. Charge indicator circuit and electronic device using the same
US20110062916A1 (en) * 2009-09-17 2011-03-17 Qualcomm Incorporated Movable magnetically resonant antenna for wireless charging
US20110270462A1 (en) * 2008-11-14 2011-11-03 Toyota Jidosha Kabushiki Kaisha Contactless power supply system and control method thereof
US20130082651A1 (en) * 2011-09-30 2013-04-04 Samsung Electronics Co., Ltd. Apparatus and method for wireless charging
US20130106346A1 (en) * 2011-10-27 2013-05-02 Ford Global Technologies, Llc Wireless charging system having sense shutdown and method therefor
US20130249682A1 (en) * 2011-10-27 2013-09-26 Ford Global Technologies, Llc Vehicle wireless charger safety system
US8614561B2 (en) 2008-03-07 2013-12-24 Canon Kabushiki Kaisha Charging apparatus
US20140194099A1 (en) * 2013-01-08 2014-07-10 Samsung Electronics Co., Ltd. Method and apparatus for displaying information about wireless charging pad in electronic device
US20140203770A1 (en) * 2013-01-24 2014-07-24 Ford Global Technologies, Llc System and method for indicating charging status during wireless charging
US20140210404A1 (en) * 2012-11-02 2014-07-31 Espower Electronics Inc. Apparatus for both inductive coupled power transferring and electrical-field coupled power transferring
CN104167773A (zh) * 2013-05-15 2014-11-26 福特全球技术公司 车辆无线充电器安全系统
US8981728B1 (en) * 2014-05-05 2015-03-17 Shangri-la Management S.L. Wireless power transfer via data signal
US9065157B2 (en) 2012-11-08 2015-06-23 Ford Global Technologies, Llc System and method for reducing thermal conditions during wireless charging
US9124124B2 (en) 2012-10-16 2015-09-01 Ford Global Technologies, Llc System and method for reducing interference during wireless charging
US9148033B2 (en) 2012-12-21 2015-09-29 Ford Global Technologies, Llc System of securing a wide-range of devices during wireless charging
US20160028443A1 (en) * 2014-07-23 2016-01-28 Samsung Electronics Co., Ltd. Wireless power transmission system and method based on transmission schedule
US9287722B2 (en) 2013-03-15 2016-03-15 Donald S. Williams Personal e-port apparatus
US9294153B2 (en) 2010-09-23 2016-03-22 Texas Instruments Incorporated Systems and methods of wireless power transfer with interference detection
US20160118825A1 (en) * 2014-10-28 2016-04-28 Renesas Electronics America Inc. High voltage generation method at battery system
US20160164333A1 (en) * 2013-07-18 2016-06-09 Panasonic Intellectual Property Management Co., Ltd. Contactless charger, program therefor, and automobile equipped with same
US9385557B2 (en) 2012-08-23 2016-07-05 At&T Mobility Ii Llc Methods, systems, and products for charging of devices
US9455596B2 (en) 2012-10-16 2016-09-27 Ford Global Technologies, Llc System and method for reducing interference between wireless charging and amplitude modulation reception
US9472963B2 (en) 2013-02-06 2016-10-18 Ford Global Technologies, Llc Device for wireless charging having a plurality of wireless charging protocols
US20160352178A1 (en) * 2015-05-29 2016-12-01 Fu Tai Hua Industry (Shenzhen) Co., Ltd. Assistance device
US9536656B2 (en) 2012-05-21 2017-01-03 Texas Instruments Incorporated Systems and methods of reduction of parasitic losses in a wireless power system
USRE46392E1 (en) 2007-11-30 2017-05-02 Intel Corporation Wireless multi-charger system and controlling method thereof
US9667085B2 (en) 2013-06-19 2017-05-30 Samsung Electronics Co., Ltd Wireless charger for electronic device
US9762079B2 (en) 2011-05-17 2017-09-12 Samsung Electronics Co., Ltd Power transmitting and receiving apparatus and method for performing a wireless multi-power transmission
US9939539B2 (en) 2014-04-04 2018-04-10 Texas Instruments Incorporated Wireless power receiver and/or foreign object detection by a wireless power transmitter
US10122189B1 (en) 2016-08-23 2018-11-06 Omar Walker Organizer and charger for multiple personal electronic devices
US10283952B2 (en) 2017-06-22 2019-05-07 Bretford Manufacturing, Inc. Rapidly deployable floor power system
US11394250B2 (en) 2017-04-07 2022-07-19 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Wireless charging device, wireless charging method and device to be charged
US11437865B2 (en) * 2017-04-07 2022-09-06 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Wireless charging system, wireless charging method, and device to-be-charged
USRE49300E1 (en) 2008-12-12 2022-11-15 Ge Hybrid Technologies, Llc Non-contact charging station with power transmission planar spiral core, non-contact power-receiving apparatus, and method for controlling the same

Families Citing this family (109)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8855554B2 (en) 2008-03-05 2014-10-07 Qualcomm Incorporated Packaging and details of a wireless power device
EP2277252A4 (fr) 2008-04-21 2017-04-26 Qualcomm Incorporated Transfert de puissance efficace de courte portée
US8497658B2 (en) 2009-01-22 2013-07-30 Qualcomm Incorporated Adaptive power control for wireless charging of devices
US11476566B2 (en) 2009-03-09 2022-10-18 Nucurrent, Inc. Multi-layer-multi-turn structure for high efficiency wireless communication
CN101860085A (zh) * 2009-04-08 2010-10-13 鸿富锦精密工业（深圳）有限公司 无线供电器
US9121073B2 (en) * 2009-07-28 2015-09-01 Bosch Automotive Service Solutions Inc. Plug-in electric vehicle supply equipment with indicators
US8390249B2 (en) * 2009-11-30 2013-03-05 Broadcom Corporation Battery with integrated wireless power receiver and/or RFID
JP5550097B2 (ja) * 2009-12-02 2014-07-16 Ｎｅｃカシオモバイルコミュニケーションズ株式会社 無接点充電装置及び電子機器並びにプログラム
DE102010012356B4 (de) 2010-03-22 2021-04-29 Sew-Eurodrive Gmbh & Co Kg System zur berührungslosen Energieübertragung an ein Fahrzeug
JP2011211660A (ja) * 2010-03-30 2011-10-20 Toshiba Corp 画像表示装置、画像表示システム、及び表示方法
KR101688875B1 (ko) 2010-03-31 2016-12-26 삼성전자주식회사 무선 충전 세트
KR101672736B1 (ko) * 2010-05-14 2016-11-04 삼성전자주식회사 이동체를 이용한 전력 및 데이터 전송 장치 및 방법
JP5789790B2 (ja) * 2010-09-10 2015-10-07 パナソニックＩｐマネジメント株式会社 送電装置および無線電力伝送システム
KR101213086B1 (ko) 2010-11-04 2012-12-18 유한회사 한림포스텍 무선 전력 전송 장치에서의 무선 전력 신호 제어 방법 및 이를 이용하는 무선 전력 전송 장치
US9899882B2 (en) * 2010-12-20 2018-02-20 Qualcomm Incorporated Wireless power peer to peer communication
KR101727495B1 (ko) 2010-12-28 2017-05-02 엘지전자 주식회사 이동 단말기
KR101777221B1 (ko) * 2011-01-03 2017-09-26 삼성전자주식회사 무선 전력 송신 장치 및 이의 무선 전력 전송 시스템
JP5654367B2 (ja) * 2011-01-28 2015-01-14 パナソニックＩｐマネジメント株式会社 非接触給電装置の給電モジュール、非接触給電装置の給電モジュールの使用方法及び非接触給電装置の給電モジュールの製造方法
CN102934327B (zh) * 2011-03-11 2015-11-25 海尔集团公司 无线供电装置和方法
KR101397624B1 (ko) * 2011-03-23 2014-05-22 주식회사 한림포스텍 무선 전력 전송 장치에서의 전력 전송 제어 방법 및 전력 전송 장치
KR101246693B1 (ko) * 2011-03-23 2013-03-21 주식회사 한림포스텍 무선 전력 수신 장치 및 그 전력 제어 방법
KR101859191B1 (ko) 2011-03-23 2018-05-18 삼성전자주식회사 무선 전력 전송 시스템, 무선 전력 전송 및 수신 제어 방법
US9912201B2 (en) * 2011-04-11 2018-03-06 Texas Instruments Incorporated Systems and methods of detecting a change in object presence in a magnetic field
JP2012239814A (ja) * 2011-05-24 2012-12-10 Fujifilm Corp 放射線撮影装置
KR101950309B1 (ko) * 2011-06-07 2019-02-21 삼성전자주식회사 무선 전력 송수신 시스템에서의 수신기의 무선 전력 제어 방법 및 장치
KR101810465B1 (ko) * 2011-06-10 2018-01-25 엘지전자 주식회사 무선 전력 전달 중 단말기의 오리엔테이션 변경을 취급하는 장치 및 그 방법
JP5701702B2 (ja) * 2011-07-01 2015-04-15 シャープ株式会社 充電台、該充電台を制御する充電台制御端末、充電台の制御方法、充電台制御端末の制御方法、充電台制御プログラム、充電台制御端末制御プログラム、および記録媒体
JP2013027074A (ja) * 2011-07-15 2013-02-04 Panasonic Corp 非接触給電装置
JP5838333B2 (ja) 2011-08-01 2016-01-06 パナソニックＩｐマネジメント株式会社 非接触給電装置
KR101580342B1 (ko) * 2011-08-29 2015-12-24 삼성전기주식회사 무선 전력 전송 시스템 및 그의 제어방법
KR20130024757A (ko) * 2011-08-29 2013-03-08 주식회사 케이더파워 이종 충전 방식을 가진 무선 충전 시스템
KR101253670B1 (ko) 2011-09-05 2013-04-11 엘에스전선 주식회사 다중 안테나를 이용한 무선 전력 전송 장치 및 그 제어 방법
FR2980925B1 (fr) 2011-10-03 2014-05-09 Commissariat Energie Atomique Systeme de transfert d'energie par couplage electromagnetique
EP2797204B1 (fr) * 2011-10-25 2018-08-01 Kim, In Pyo Système et procédé de charge sans contact
JP5895449B2 (ja) * 2011-10-28 2016-03-30 日立化成株式会社 非接触電力送信装置、および、非接触電力伝送システム
KR101910194B1 (ko) * 2011-11-07 2018-10-22 엘에스전선 주식회사 멀티 충전이 가능한 무선 전력 송수신 시스템
CN102496994A (zh) * 2011-12-09 2012-06-13 上海师范大学 一种基于zigbee无线技术的充电控制方法
TW201325007A (zh) * 2011-12-12 2013-06-16 Nutex Comm Corp 行動電源
JP5927582B2 (ja) * 2012-01-10 2016-06-01 パナソニックＩｐマネジメント株式会社 照明用非接触給電システム、および照明器具
JP6032900B2 (ja) * 2012-02-06 2016-11-30 キヤノン株式会社 電子機器
CN112046305A (zh) * 2012-02-16 2020-12-08 奥克兰联合服务有限公司 多线圈通量衬垫
KR20130096020A (ko) * 2012-02-21 2013-08-29 삼성전자주식회사 무선 충전 장치 및 방법
KR101339486B1 (ko) 2012-03-29 2013-12-10 삼성전기주식회사 박막 코일 및 이를 구비하는 전자 기기
US9218031B2 (en) * 2012-05-18 2015-12-22 Dell Products, Lp System and method for providing wireless power feedback in a wireless power delivery system
JP6632126B2 (ja) * 2012-07-30 2020-01-15 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． ワイヤレス誘導電力伝送
KR20140066415A (ko) 2012-11-23 2014-06-02 삼성전기주식회사 무선 충전 장치 및 이를 구비하는 전자 기기
KR20140071183A (ko) * 2012-12-03 2014-06-11 삼성전기주식회사 무접점 전력 전송 장치
US9667322B2 (en) * 2012-12-28 2017-05-30 Avago Technologies General Ip (Singapore) Pte. Ltd. Method and system for wireless power transfer calibration
JP6173057B2 (ja) 2013-06-11 2017-08-02 キヤノン株式会社 給電装置、給電方法、プログラム及び記録媒体
JP6245859B2 (ja) * 2013-06-26 2017-12-13 キヤノン株式会社 送電装置、送電装置の制御方法、プログラム
US20150042267A1 (en) * 2013-08-12 2015-02-12 O2Micro Inc. System and Method for Controlling a Battery
TWI509937B (zh) * 2013-09-16 2015-11-21 萬國商業機器公司 用於一第一裝置對一第二裝置進行無線充電的方法，充電裝置，及充電系統
CN103595099B (zh) * 2013-11-20 2015-06-17 南京特能电子有限公司 一种智能数字充电监测表
US20150249343A1 (en) 2014-03-03 2015-09-03 The Wiremold Company Wireless power stations
CN106464307B (zh) 2014-06-19 2018-08-28 皇家飞利浦有限公司 无线感应功率传输
WO2016013451A1 (fr) * 2014-07-22 2016-01-28 ローム株式会社 Circuit de charge, dispositif électronique l'utilisant, et chargeur
US9408264B2 (en) * 2014-08-13 2016-08-02 Hsiao Chang Tsai Lamp system realizing various ways for controlling lighting up thereof
US11984731B2 (en) * 2014-12-22 2024-05-14 The Wiremold Company Ecosystem for surface-based wireless charging system
KR102231851B1 (ko) 2014-09-25 2021-03-26 삼성전자주식회사 하나 이상의 전자 장치들을 충전하는 방법 및 그를 위한 충전 장치
TR201906689T4 (tr) * 2014-12-11 2019-05-21 Koninklijke Philips Nv Kablosuz indükleyici güç transferi
CN105790327A (zh) * 2014-12-18 2016-07-20 上海市格致中学 自动发电充电宝
CN104505887A (zh) * 2014-12-24 2015-04-08 东莞市联丰莱盛隆电子科技有限公司 一种插入触接式的充电宝充电器
CN106160253B (zh) 2015-03-13 2020-09-04 恩智浦美国有限公司 用于无线功率传输的自由谐振模拟探察
JP6495730B2 (ja) * 2015-04-30 2019-04-03 ホシデン株式会社 二次コイルモジュール
JP6540216B2 (ja) * 2015-05-13 2019-07-10 セイコーエプソン株式会社 制御装置、電子機器及び無接点電力伝送システム
US9740257B2 (en) * 2015-05-28 2017-08-22 ScienBiziP Consulting(Shenzhen)Co., Ltd. Wireless communication system and network attached storage device thereof
US10063100B2 (en) 2015-08-07 2018-08-28 Nucurrent, Inc. Electrical system incorporating a single structure multimode antenna for wireless power transmission using magnetic field coupling
US10636563B2 (en) 2015-08-07 2020-04-28 Nucurrent, Inc. Method of fabricating a single structure multi mode antenna for wireless power transmission using magnetic field coupling
US11205848B2 (en) 2015-08-07 2021-12-21 Nucurrent, Inc. Method of providing a single structure multi mode antenna having a unitary body construction for wireless power transmission using magnetic field coupling
US10658847B2 (en) 2015-08-07 2020-05-19 Nucurrent, Inc. Method of providing a single structure multi mode antenna for wireless power transmission using magnetic field coupling
WO2017031348A1 (fr) 2015-08-19 2017-02-23 Nucurrent, Inc. Configurations d'antenne sans fil multimode
JP6299738B2 (ja) * 2015-12-24 2018-03-28 トヨタ自動車株式会社 非接触送電装置及び電力伝送システム
US9941719B2 (en) 2016-05-18 2018-04-10 International Business Machines Corporation Wireless charging surface
EP3280030B1 (fr) 2016-08-04 2023-08-30 General Electric Company Système et procédé pour charger des dispositifs récepteurs
US10756562B2 (en) * 2016-08-05 2020-08-25 Sharp Kabushiki Kaisha Communication device, control program, and non contact power-supply system
US10931118B2 (en) 2016-08-26 2021-02-23 Nucurrent, Inc. Wireless connector transmitter module with an electrical connector
US10128668B2 (en) * 2016-09-30 2018-11-13 Sears Brands, L.L.C. Charger, charge indicator, and associated methods
US10511183B2 (en) * 2016-12-02 2019-12-17 Shenzhen Yichong Wireless Power Technology Co., Ltd System, apparatus and method for optimizing wireless charging via load modulation
EP3552298A4 (fr) 2016-12-09 2020-01-15 NuCurrent, Inc. Substrat configuré pour faciliter un transfert d'énergie par métal par l'intermédiaire d'un couplage magnétique en champ proche
US20190348848A1 (en) * 2017-02-10 2019-11-14 Seymour Segnit Modular Charging and System Wall-Mounted Charging Device and Modular Power Devices
US10903688B2 (en) 2017-02-13 2021-01-26 Nucurrent, Inc. Wireless electrical energy transmission system with repeater
US11277029B2 (en) 2017-05-26 2022-03-15 Nucurrent, Inc. Multi coil array for wireless energy transfer with flexible device orientation
US10677853B2 (en) * 2017-06-22 2020-06-09 Stryker Corporation System and method for determining an amount of degradation of a medical device battery
US10938253B2 (en) 2017-09-08 2021-03-02 Apple Inc. Wireless power system with battery charge indicators
CN107863792B (zh) * 2017-10-01 2024-04-26 深圳市博源电子有限公司 充电控制方法及充电器
US10483798B2 (en) * 2018-01-08 2019-11-19 Joseph James Hennessy Wireless portable charger and display panel for a wireless chargeable hand held device
CN108306428A (zh) * 2018-01-15 2018-07-20 杭州电子科技大学 基于无线充电的充电设备位置检测方法
CN108597202A (zh) * 2018-03-30 2018-09-28 苏州诺登德智能科技有限公司 一种基于无线充电的无线采集装置
WO2019199740A1 (fr) 2018-04-09 2019-10-17 CTOP Wireless Charging Solutions LLC Système et procédé de charge par induction sans fil multi-bobine commutable
US11056923B2 (en) * 2018-06-05 2021-07-06 Avago Technologies International Sales Pte. Limited Wireless charging relay and method
CN110768312B (zh) * 2018-07-25 2021-07-16 Oppo广东移动通信有限公司 充电控制方法、装置、存储介质及无线充电设备
KR102602642B1 (ko) * 2018-09-18 2023-11-16 삼성전자주식회사 무선 충전 장치
CN109672256A (zh) * 2018-10-09 2019-04-23 深圳市方昕科技有限公司 一种一充四无线充电系统
CN109038766A (zh) * 2018-10-09 2018-12-18 深圳市方昕科技有限公司 一种一充三无线充电系统
CN111049284A (zh) 2018-10-11 2020-04-21 恩智浦美国有限公司 配对接收器和无线充电发射器的方法
KR20200120133A (ko) * 2019-04-11 2020-10-21 삼성전자주식회사 복수의 전자 장치를 무선 충전하는 무선 충전 장치 및 이를 통해 충전되는 전자 장치
CN112117815A (zh) 2019-06-20 2020-12-22 恩智浦美国有限公司 多线圈无线充电器
US11227712B2 (en) 2019-07-19 2022-01-18 Nucurrent, Inc. Preemptive thermal mitigation for wireless power systems
US11271430B2 (en) 2019-07-19 2022-03-08 Nucurrent, Inc. Wireless power transfer system with extended wireless charging range
US11056922B1 (en) 2020-01-03 2021-07-06 Nucurrent, Inc. Wireless power transfer system for simultaneous transfer to multiple devices
CN111474492A (zh) * 2020-03-31 2020-07-31 海南掌上能量传媒有限公司 一种移动电源检测方法
US11283303B2 (en) 2020-07-24 2022-03-22 Nucurrent, Inc. Area-apportioned wireless power antenna for maximized charging volume
US11881716B2 (en) 2020-12-22 2024-01-23 Nucurrent, Inc. Ruggedized communication for wireless power systems in multi-device environments
US11876386B2 (en) 2020-12-22 2024-01-16 Nucurrent, Inc. Detection of foreign objects in large charging volume applications
US11695302B2 (en) 2021-02-01 2023-07-04 Nucurrent, Inc. Segmented shielding for wide area wireless power transmitter
CN113541269B (zh) * 2021-08-13 2023-06-02 广州城市理工学院 一种手机无线充电方法
JP2023030273A (ja) * 2021-08-23 2023-03-08 東芝テック株式会社 非接触給電装置
US11831174B2 (en) 2022-03-01 2023-11-28 Nucurrent, Inc. Cross talk and interference mitigation in dual wireless power transmitter
US12003116B2 (en) 2022-03-01 2024-06-04 Nucurrent, Inc. Wireless power transfer system for simultaneous transfer to multiple devices with cross talk and interference mitigation

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6457006A (en) 1987-08-27 1989-03-03 Matsushita Electric Ind Co Ltd Liquid fuel combustor
US5157319A (en) 1991-09-27 1992-10-20 Electric Power Research Institute Contactless battery charging system
JPH0919078A (ja) 1995-06-27 1997-01-17 Omron Corp 電磁誘導式充電装置、被充電電子機器及び電動歯ブラシ
US5831348A (en) 1996-06-03 1998-11-03 Mitsubishi Denki Kabushiki Kaisha Secondary circuit device for wireless transmit-receive system and induction coil for wireless transmit-receive system
US6184651B1 (en) 2000-03-20 2001-02-06 Motorola, Inc. Contactless battery charger with wireless control link
US6683438B2 (en) * 2001-01-05 2004-01-27 Samsung Electronics Co., Ltd. Contactless battery charger
JP2004222457A (ja) 2003-01-16 2004-08-05 Sony Corp 充電システム、携帯電子機器、充電装置及び充電方法、中央管理装置及び中央管理方法
JP2005006440A (ja) 2003-06-12 2005-01-06 Seiko Epson Corp 無接点充電システムおよび無接点充電器
KR20050054816A (ko) 2003-12-05 2005-06-10 가부시키가이샤 다이후쿠 무접촉 급전설비
KR100554889B1 (ko) 2005-03-21 2006-03-03 주식회사 한림포스텍 무접점 충전 시스템
US20060226805A1 (en) * 2005-04-11 2006-10-12 Tsung-I Yu Mobile battery-charging container
JP2006314181A (ja) 2005-05-09 2006-11-16 Sony Corp 非接触充電装置及び非接触充電システム並びに非接触充電方法
KR20070014804A (ko) 2005-07-29 2007-02-01 고등기술연구원연구조합 비접촉 유도 전원 공급 기능을 구비한 장치 및 그 유도전원을 이용하는 장치
JP2007295677A (ja) 2006-04-24 2007-11-08 I D Ekusu:Kk 充電器
US20090096413A1 (en) * 2006-01-31 2009-04-16 Mojo Mobility, Inc. System and method for inductive charging of portable devices

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0321925Y2 (fr) 1987-10-06 1991-05-14
JPH031603A (ja) * 1989-05-30 1991-01-08 Mitsubishi Electric Corp 増幅器
DE59104423D1 (de) * 1991-04-19 1995-03-09 Siemens Ag Einrichtung zur berührungslosen Daten- und Energieübertragung sowie Verfahren zum Betrieb einer solchen.
DE19837675A1 (de) * 1998-08-19 2000-02-24 Nokia Technology Gmbh Ladevorrichtung für Akkumulatoren in einem mobilen elektrischen Gerät mit induktiver Energieübertragung
US6160374A (en) * 1999-08-02 2000-12-12 General Motors Corporation Power-factor-corrected single-stage inductive charger
JP3741614B2 (ja) * 2001-02-06 2006-02-01 株式会社マキタ 複数電池充電装置
JP2003224937A (ja) * 2002-01-25 2003-08-08 Sony Corp 電力供給装置および方法、受電装置および方法、電力供給システム、記録媒体、並びにプログラム
US8183827B2 (en) * 2003-01-28 2012-05-22 Hewlett-Packard Development Company, L.P. Adaptive charger system and method
US7233137B2 (en) * 2003-09-30 2007-06-19 Sharp Kabushiki Kaisha Power supply system
US7375493B2 (en) * 2003-12-12 2008-05-20 Microsoft Corporation Inductive battery charger
GB2414121B (en) * 2004-05-11 2008-04-02 Splashpower Ltd Controlling inductive power transfer systems
GB2414120B (en) * 2004-05-11 2008-04-02 Splashpower Ltd Controlling inductive power transfer systems
KR100564256B1 (ko) * 2004-06-25 2006-03-29 주식회사 한림포스텍 무선주파수 식별기술이 적용된 무선 충전용 패드 및배터리팩
NZ535390A (en) * 2004-09-16 2007-10-26 Auckland Uniservices Ltd Inductively powered mobile sensor system
JP4318044B2 (ja) * 2005-03-03 2009-08-19 ソニー株式会社 電力供給システム、電力供給装置および方法、受電装置および方法、記録媒体、並びにプログラム
KR100792308B1 (ko) * 2006-01-31 2008-01-07 엘에스전선 주식회사 코일 어레이를 구비한 무접점 충전장치, 무접점 충전시스템 및 충전 방법
JP4618561B2 (ja) * 2006-04-28 2011-01-26 日立工機株式会社 電池の充電装置
EP2086085B1 (fr) 2006-11-08 2015-04-15 Panasonic Corporation Chargeur sans contact et système de charge sans contact
JP4308858B2 (ja) * 2007-02-16 2009-08-05 セイコーエプソン株式会社 送電制御装置、受電制御装置、無接点電力伝送システム、送電装置、受電装置および電子機器
US8228025B2 (en) * 2007-11-09 2012-07-24 City University Of Hong Kong Electronic control method for a planar inductive battery charging apparatus
WO2009069844A1 (fr) 2007-11-30 2009-06-04 Chun-Kil Jung Système multichargeur sans contact de dispositifs de transmission d'énergie sans fil et son procédé de commande

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6457006A (en) 1987-08-27 1989-03-03 Matsushita Electric Ind Co Ltd Liquid fuel combustor
US5157319A (en) 1991-09-27 1992-10-20 Electric Power Research Institute Contactless battery charging system
JPH0919078A (ja) 1995-06-27 1997-01-17 Omron Corp 電磁誘導式充電装置、被充電電子機器及び電動歯ブラシ
US5831348A (en) 1996-06-03 1998-11-03 Mitsubishi Denki Kabushiki Kaisha Secondary circuit device for wireless transmit-receive system and induction coil for wireless transmit-receive system
US6184651B1 (en) 2000-03-20 2001-02-06 Motorola, Inc. Contactless battery charger with wireless control link
US6683438B2 (en) * 2001-01-05 2004-01-27 Samsung Electronics Co., Ltd. Contactless battery charger
JP2004222457A (ja) 2003-01-16 2004-08-05 Sony Corp 充電システム、携帯電子機器、充電装置及び充電方法、中央管理装置及び中央管理方法
JP2005006440A (ja) 2003-06-12 2005-01-06 Seiko Epson Corp 無接点充電システムおよび無接点充電器
KR20050054816A (ko) 2003-12-05 2005-06-10 가부시키가이샤 다이후쿠 무접촉 급전설비
KR100554889B1 (ko) 2005-03-21 2006-03-03 주식회사 한림포스텍 무접점 충전 시스템
US20060226805A1 (en) * 2005-04-11 2006-10-12 Tsung-I Yu Mobile battery-charging container
JP2006314181A (ja) 2005-05-09 2006-11-16 Sony Corp 非接触充電装置及び非接触充電システム並びに非接触充電方法
KR20070014804A (ko) 2005-07-29 2007-02-01 고등기술연구원연구조합 비접촉 유도 전원 공급 기능을 구비한 장치 및 그 유도전원을 이용하는 장치
US20090096413A1 (en) * 2006-01-31 2009-04-16 Mojo Mobility, Inc. System and method for inductive charging of portable devices
JP2007295677A (ja) 2006-04-24 2007-11-08 I D Ekusu:Kk 充電器

Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE46392E1 (en) 2007-11-30 2017-05-02 Intel Corporation Wireless multi-charger system and controlling method thereof
USRE46391E1 (en) 2007-11-30 2017-05-02 Intel Corporation Wireless multi-charger system and controlling method thereof
US8614561B2 (en) 2008-03-07 2013-12-24 Canon Kabushiki Kaisha Charging apparatus
US20090271047A1 (en) * 2008-04-28 2009-10-29 Masataka Wakamatsu Power transmitting apparatus, power receiving apparatus, power transmission method, program, and power transmission system
US8577479B2 (en) * 2008-04-28 2013-11-05 Sony Corporation Power transmitting apparatus, power receiving apparatus, power transmission method, program, and power transmission system
US20110270462A1 (en) * 2008-11-14 2011-11-03 Toyota Jidosha Kabushiki Kaisha Contactless power supply system and control method thereof
US9172251B2 (en) * 2008-11-14 2015-10-27 Toyota Jidosha Kabushiki Kaisha Controlling the wireless transmission of power based on the efficiency of power transmissions
USRE49300E1 (en) 2008-12-12 2022-11-15 Ge Hybrid Technologies, Llc Non-contact charging station with power transmission planar spiral core, non-contact power-receiving apparatus, and method for controlling the same
US20100201314A1 (en) * 2009-02-12 2010-08-12 Qualcomm Incorporated Wireless power transfer for low power devices
US8796999B2 (en) * 2009-02-12 2014-08-05 Qualcomm Incorporated Wireless power transfer for low power devices
US9425642B2 (en) 2009-02-12 2016-08-23 Qualcomm Incorporated Wireless power transfer for low power devices
US20100277336A1 (en) * 2009-04-30 2010-11-04 Shenzhen Futaihong Precision Industry Co., Ltd. Charge indicator circuit and electronic device using the same
US8416097B2 (en) * 2009-04-30 2013-04-09 Shenzhen Futaihong Precision Industry Co., Ltd. Charge indicator circuit and electronic device using the same
US20110062916A1 (en) * 2009-09-17 2011-03-17 Qualcomm Incorporated Movable magnetically resonant antenna for wireless charging
US8541974B2 (en) * 2009-09-17 2013-09-24 Qualcomm Incorporated Movable magnetically resonant antenna for wireless charging
US9294153B2 (en) 2010-09-23 2016-03-22 Texas Instruments Incorporated Systems and methods of wireless power transfer with interference detection
US9762079B2 (en) 2011-05-17 2017-09-12 Samsung Electronics Co., Ltd Power transmitting and receiving apparatus and method for performing a wireless multi-power transmission
US11171519B2 (en) 2011-05-17 2021-11-09 Samsung Electronics Co., Ltd Power transmitting and receiving apparatus and method for performing a wireless multi-power transmission
US20130082651A1 (en) * 2011-09-30 2013-04-04 Samsung Electronics Co., Ltd. Apparatus and method for wireless charging
US9145110B2 (en) * 2011-10-27 2015-09-29 Ford Global Technologies, Llc Vehicle wireless charger safety system
US9493085B2 (en) * 2011-10-27 2016-11-15 Ford Global Technologies, Llc Vehicular charging and protection systems
US20130249682A1 (en) * 2011-10-27 2013-09-26 Ford Global Technologies, Llc Vehicle wireless charger safety system
US20130106346A1 (en) * 2011-10-27 2013-05-02 Ford Global Technologies, Llc Wireless charging system having sense shutdown and method therefor
US9536656B2 (en) 2012-05-21 2017-01-03 Texas Instruments Incorporated Systems and methods of reduction of parasitic losses in a wireless power system
US9912189B2 (en) 2012-08-23 2018-03-06 At&T Mobility Ii Llc Methods, systems, and products for charging of devices
US11081901B2 (en) 2012-08-23 2021-08-03 At&T Mobility Ii Llc Wireless charging of mobile devices
US10418843B2 (en) 2012-08-23 2019-09-17 At&T Mobility Ii Llc Wireless charging of mobile devices in vehicles
US9385557B2 (en) 2012-08-23 2016-07-05 At&T Mobility Ii Llc Methods, systems, and products for charging of devices
US9455596B2 (en) 2012-10-16 2016-09-27 Ford Global Technologies, Llc System and method for reducing interference between wireless charging and amplitude modulation reception
US9124124B2 (en) 2012-10-16 2015-09-01 Ford Global Technologies, Llc System and method for reducing interference during wireless charging
US20140210404A1 (en) * 2012-11-02 2014-07-31 Espower Electronics Inc. Apparatus for both inductive coupled power transferring and electrical-field coupled power transferring
US9065157B2 (en) 2012-11-08 2015-06-23 Ford Global Technologies, Llc System and method for reducing thermal conditions during wireless charging
US9148033B2 (en) 2012-12-21 2015-09-29 Ford Global Technologies, Llc System of securing a wide-range of devices during wireless charging
US9564940B2 (en) * 2013-01-08 2017-02-07 Samsung Electronics Co., Ltd. Method and apparatus for displaying information about wireless charging pad in electronic device
US20140194099A1 (en) * 2013-01-08 2014-07-10 Samsung Electronics Co., Ltd. Method and apparatus for displaying information about wireless charging pad in electronic device
US20140203770A1 (en) * 2013-01-24 2014-07-24 Ford Global Technologies, Llc System and method for indicating charging status during wireless charging
US9472963B2 (en) 2013-02-06 2016-10-18 Ford Global Technologies, Llc Device for wireless charging having a plurality of wireless charging protocols
US9287722B2 (en) 2013-03-15 2016-03-15 Donald S. Williams Personal e-port apparatus
CN104167773B (zh) * 2013-05-15 2018-12-18 福特全球技术公司 车辆无线充电器安全系统
RU2632565C2 (ru) * 2013-05-15 2017-10-05 Форд Глобал Технолоджис, ЛЛК Зарядная система для транспортного средства
CN104167773A (zh) * 2013-05-15 2014-11-26 福特全球技术公司 车辆无线充电器安全系统
US9667085B2 (en) 2013-06-19 2017-05-30 Samsung Electronics Co., Ltd Wireless charger for electronic device
US20160164333A1 (en) * 2013-07-18 2016-06-09 Panasonic Intellectual Property Management Co., Ltd. Contactless charger, program therefor, and automobile equipped with same
US9939539B2 (en) 2014-04-04 2018-04-10 Texas Instruments Incorporated Wireless power receiver and/or foreign object detection by a wireless power transmitter
US8981728B1 (en) * 2014-05-05 2015-03-17 Shangri-la Management S.L. Wireless power transfer via data signal
US10567038B2 (en) * 2014-07-23 2020-02-18 Samsung Electronics Co., Ltd. Wireless power transmission system and method based on transmission schedule
US20160028443A1 (en) * 2014-07-23 2016-01-28 Samsung Electronics Co., Ltd. Wireless power transmission system and method based on transmission schedule
US9711984B2 (en) * 2014-10-28 2017-07-18 Renesas Electronics America Inc. High voltage generation method at battery system
US20160118825A1 (en) * 2014-10-28 2016-04-28 Renesas Electronics America Inc. High voltage generation method at battery system
US20160352178A1 (en) * 2015-05-29 2016-12-01 Fu Tai Hua Industry (Shenzhen) Co., Ltd. Assistance device
US10122189B1 (en) 2016-08-23 2018-11-06 Omar Walker Organizer and charger for multiple personal electronic devices
US11394250B2 (en) 2017-04-07 2022-07-19 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Wireless charging device, wireless charging method and device to be charged
US11437865B2 (en) * 2017-04-07 2022-09-06 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Wireless charging system, wireless charging method, and device to-be-charged
US10283952B2 (en) 2017-06-22 2019-05-07 Bretford Manufacturing, Inc. Rapidly deployable floor power system

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USRE46392E1 (en) 2017-05-02
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JP2009136133A (ja) 2009-06-18
EP2683054A3 (fr) 2017-09-06
US20130300355A1 (en) 2013-11-14
US20090140691A1 (en) 2009-06-04
EP2701273A2 (fr) 2014-02-26
EP2066001A2 (fr) 2009-06-03
WO2009069844A1 (fr) 2009-06-04
EP2683051B1 (fr) 2019-05-01
EP2066001A3 (fr) 2013-03-13
USRE46391E1 (en) 2017-05-02

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